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|
<!DOCTYPE html>
<!--
Copyright 2015 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<link rel="import" href="/tracing/base/color_scheme.html">
<link rel="import" href="/tracing/base/iteration_helpers.html">
<link rel="import" href="/tracing/base/multi_dimensional_view.html">
<link rel="import" href="/tracing/ui/analysis/memory_dump_heap_details_breakdown_view.html">
<link rel="import" href="/tracing/ui/analysis/memory_dump_heap_details_path_view.html">
<link rel="import" href="/tracing/ui/analysis/memory_dump_heap_details_util.html">
<link rel="import" href="/tracing/ui/analysis/memory_dump_sub_view_util.html">
<link rel="import" href="/tracing/ui/analysis/stacked_pane.html">
<link rel="import" href="/tracing/ui/base/dom_helpers.html">
<link rel="import" href="/tracing/ui/base/drag_handle.html">
<link rel="import" href="/tracing/ui/base/info_bar.html">
<link rel="import" href="/tracing/value/numeric.html">
<dom-module id='tr-ui-a-memory-dump-heap-details-pane'>
<template>
<style>
:host {
display: flex;
flex-direction: column;
}
#header {
flex: 0 0 auto;
display: flex;
flex-direction: row;
align-items: center;
background-color: #eee;
border-bottom: 1px solid #8e8e8e;
border-top: 1px solid white;
}
#label {
flex: 1 1 auto;
padding: 8px;
font-size: 15px;
font-weight: bold;
}
#view_mode_container {
display: none;
flex: 0 0 auto;
padding: 5px;
font-size: 15px;
}
#contents {
flex: 1 0 auto;
align-self: stretch;
font-size: 12px;
}
#info_text {
padding: 8px;
color: #666;
font-style: italic;
text-align: center;
}
#split_view {
display: none; /* Hide until memory allocator dumps are set. */
flex: 1 0 auto;
align-self: stretch;
flex-direction: row;
}
#path_view {
width: 50%;
}
#breakdown_view {
flex: 1 1 auto;
width: 0;
}
#path_view, #breakdown_view {
overflow-x: auto; /* Show scrollbar if necessary. */
}
</style>
<div id="header">
<div id="label">Heap details</div>
<div id="view_mode_container">
<span>View mode:</span>
<!-- View mode selector (added in Polymer.ready()) -->
</div>
</div>
<div id="contents">
<tr-ui-b-info-bar id="info_bar" class="info-bar-hidden">
</tr-ui-b-info-bar>
<div id="info_text">No heap dump selected</div>
<div id="split_view">
<tr-ui-a-memory-dump-heap-details-path-view id="path_view">
</tr-ui-a-memory-dump-heap-details-path-view>
<tr-ui-b-drag-handle id="drag_handle"></tr-ui-b-drag-handle>
<tr-ui-a-memory-dump-heap-details-breakdown-view id="breakdown_view">
</tr-ui-a-memory-dump-heap-details-breakdown-view>
</div>
</div>
</template>
</dom-module>
<script>
'use strict';
tr.exportTo('tr.ui.analysis', function() {
var ScalarNumeric = tr.v.ScalarNumeric;
var sizeInBytes_smallerIsBetter =
tr.b.Unit.byName.sizeInBytes_smallerIsBetter;
var count_smallerIsBetter = tr.b.Unit.byName.count_smallerIsBetter;
var MultiDimensionalViewBuilder = tr.b.MultiDimensionalViewBuilder;
var TotalState = tr.b.MultiDimensionalViewNode.TotalState;
/** @{constructor} */
function HeapDumpTreeNode(
stackFrameNodes, dimension, title, heavyView, parentNode) {
this.dimension = dimension;
this.title = title;
this.parentNode = parentNode;
this.heavyView_ = heavyView;
this.stackFrameNodes_ = stackFrameNodes;
this.lazyCells_ = undefined;
this.lazyChildNodes_ = undefined;
}
HeapDumpTreeNode.prototype = {
get minDisplayedTotalState_() {
if (this.heavyView_) {
// Show lower-bound and exact values in heavy views.
return TotalState.LOWER_BOUND;
} else {
// Show only exact values in tree view.
return TotalState.EXACT;
}
},
get childNodes() {
if (!this.lazyChildNodes_) {
this.lazyChildNodes_ = new Map();
this.addDimensionChildNodes_(
tr.ui.analysis.HeapDetailsRowDimension.STACK_FRAME, 0);
this.addDimensionChildNodes_(
tr.ui.analysis.HeapDetailsRowDimension.OBJECT_TYPE, 1);
this.releaseStackFrameNodesIfPossible_();
}
return this.lazyChildNodes_;
},
get cells() {
if (!this.lazyCells_) {
this.addCells_();
this.releaseStackFrameNodesIfPossible_();
}
return this.lazyCells_;
},
releaseStackFrameNodesIfPossible_: function() {
if (this.lazyCells_ && this.lazyChildNodes_) {
// Don't unnecessarily hold a reference to the stack frame nodes when
// we don't need them anymore.
this.stackFrameNodes_ = undefined;
}
},
addDimensionChildNodes_: function(dimension, dimensionIndex) {
// Child title -> Timestamp (list index) -> Child
// MultiDimensionalViewNode.
var dimensionChildTitleToStackFrameNodes = tr.b.invertArrayOfDicts(
this.stackFrameNodes_,
node => this.convertStackFrameNodeDimensionToChildDict_(
node, dimensionIndex));
// Child title (list index) -> Child HeapDumpTreeNode.
var dimensionChildNodes = [];
tr.b.iterItems(dimensionChildTitleToStackFrameNodes,
function(childTitle, childStackFrameNodes) {
dimensionChildNodes.push(new HeapDumpTreeNode(childStackFrameNodes,
dimension, childTitle, this.heavyView_, this));
}, this);
this.lazyChildNodes_.set(dimension, dimensionChildNodes);
},
convertStackFrameNodeDimensionToChildDict_: function(
stackFrameNode, dimensionIndex) {
var childDict = {};
var displayedChildrenTotalSize = 0;
var displayedChildrenTotalCount = 0;
var hasDisplayedChildren = false;
var allDisplayedChildrenHaveDisplayedCounts = true;
for (var child of stackFrameNode.children[dimensionIndex].values()) {
if (child.values[0].totalState < this.minDisplayedTotalState_)
continue;
if (child.values[1].totalState < this.minDisplayedTotalState_)
allDisplayedChildrenHaveDisplayedCounts = false;
childDict[child.title[dimensionIndex]] = child;
displayedChildrenTotalSize += child.values[0].total;
displayedChildrenTotalCount += child.values[1].total;
hasDisplayedChildren = true;
}
var nodeTotalSize = stackFrameNode.values[0].total;
var nodeTotalCount = stackFrameNode.values[1].total;
// Add '<other>' node if necessary in tree-view.
var hasUnclassifiedSizeOrCount =
displayedChildrenTotalSize < nodeTotalSize ||
displayedChildrenTotalCount < nodeTotalCount;
if (!this.heavyView_ && hasUnclassifiedSizeOrCount &&
hasDisplayedChildren) {
var otherTitle = stackFrameNode.title.slice();
otherTitle[dimensionIndex] = '<other>';
var otherNode = new tr.b.MultiDimensionalViewNode(otherTitle, 2);
childDict[otherTitle[dimensionIndex]] = otherNode;
// '<other>' node size.
otherNode.values[0].total = nodeTotalSize - displayedChildrenTotalSize;
otherNode.values[0].totalState = this.minDisplayedTotalState_;
// '<other>' node allocation count.
otherNode.values[1].total =
nodeTotalCount - displayedChildrenTotalCount;
// Don't show allocation count of the '<other>' node if there is a
// displayed child node that did NOT display allocation count.
otherNode.values[1].totalState =
allDisplayedChildrenHaveDisplayedCounts ?
this.minDisplayedTotalState_ : TotalState.NOT_PROVIDED;
}
return childDict;
},
addCells_: function() {
// Transform a chronological list of heap stack frame tree nodes into a
// dictionary of cells (where each cell contains a chronological list
// of the values of its numeric).
this.lazyCells_ = tr.ui.analysis.createCells(this.stackFrameNodes_,
function(stackFrameNode) {
var size = stackFrameNode.values[0].total;
var numerics = {
'Size': new ScalarNumeric(sizeInBytes_smallerIsBetter, size)
};
var countValue = stackFrameNode.values[1];
if (countValue.totalState >= this.minDisplayedTotalState_) {
var count = countValue.total;
numerics['Count'] = new ScalarNumeric(
count_smallerIsBetter, count);
numerics['Average size per allocation'] = new ScalarNumeric(
sizeInBytes_smallerIsBetter, count === 0 ? 0 : size / count);
}
return numerics;
}, this);
}
};
Polymer({
is: 'tr-ui-a-memory-dump-heap-details-pane',
behaviors: [tr.ui.analysis.StackedPane],
created: function() {
this.heapDumps_ = undefined;
this.viewMode_ = undefined;
this.aggregationMode_ = undefined;
},
ready: function() {
this.$.info_bar.message = 'Note: Values displayed in the heavy view ' +
'are lower bounds (except for the root).';
Polymer.dom(this.$.view_mode_container).appendChild(
tr.ui.b.createSelector(
this, 'viewMode', 'memoryDumpHeapDetailsPane.viewMode',
MultiDimensionalViewBuilder.ViewType.TOP_DOWN_TREE_VIEW,
[
{
label: 'Top-down (Tree)',
value: MultiDimensionalViewBuilder.ViewType.TOP_DOWN_TREE_VIEW
},
{
label: 'Top-down (Heavy)',
value:
MultiDimensionalViewBuilder.ViewType.TOP_DOWN_HEAVY_VIEW
},
{
label: 'Bottom-up (Heavy)',
value:
MultiDimensionalViewBuilder.ViewType.BOTTOM_UP_HEAVY_VIEW
}
]));
this.$.drag_handle.target = this.$.path_view;
this.$.drag_handle.horizontal = false;
// If the user selects a node in the path view, show its children in the
// breakdown view.
this.$.path_view.addEventListener('selected-node-changed', (function(e) {
this.$.breakdown_view.displayedNode = this.$.path_view.selectedNode;
}).bind(this));
// If the user double-clicks on a node in the breakdown view, select the
// node in the path view.
this.$.breakdown_view.addEventListener('enter-node', (function(e) {
this.$.path_view.selectedNode = e.node;
}).bind(this));
},
/**
* Sets the heap dumps and schedules rebuilding the pane.
*
* The provided value should be a chronological list of heap dumps. All
* dumps are assumed to belong to the same process and belong to the same
* allocator. Example:
*
* [
* tr.model.HeapDump {}, // Heap dump at timestamp 1.
* undefined, // Heap dump not provided at timestamp 2.
* tr.model.HeapDump {}, // Heap dump at timestamp 3.
* ]
*/
set heapDumps(heapDumps) {
this.heapDumps_ = heapDumps;
this.scheduleRebuild_();
},
get heapDumps() {
return this.heapDumps_;
},
set aggregationMode(aggregationMode) {
this.aggregationMode_ = aggregationMode;
this.$.path_view.aggregationMode = aggregationMode;
this.$.breakdown_view.aggregationMode = aggregationMode;
},
get aggregationMode() {
return this.aggregationMode_;
},
set viewMode(viewMode) {
this.viewMode_ = viewMode;
this.scheduleRebuild_();
},
get viewMode() {
return this.viewMode_;
},
get heavyView() {
switch (this.viewMode) {
case MultiDimensionalViewBuilder.ViewType.TOP_DOWN_HEAVY_VIEW:
case MultiDimensionalViewBuilder.ViewType.BOTTOM_UP_HEAVY_VIEW:
return true;
default:
return false;
}
},
onRebuild_: function() {
if (this.heapDumps_ === undefined ||
this.heapDumps_.length === 0) {
// Show the info text (hide the table and the view mode selector).
this.$.info_text.style.display = 'block';
this.$.split_view.style.display = 'none';
this.$.view_mode_container.style.display = 'none';
this.$.info_bar.visible = false;
this.$.path_view.selectedNode = undefined;
return;
}
// Show the table and the view mode selector (hide the info text).
this.$.info_text.style.display = 'none';
this.$.split_view.style.display = 'flex';
this.$.view_mode_container.style.display = 'block';
// Show the info bar if in heavy view mode.
this.$.info_bar.visible = this.heavyView;
this.$.path_view.selectedNode = this.createHeapTree_();
this.$.path_view.rebuild();
this.$.breakdown_view.rebuild();
},
createHeapTree_: function() {
var definedHeapDump = tr.b.findFirstInArray(this.heapDumps_);
if (definedHeapDump === undefined)
return undefined;
// The title of the root node is the name of the allocator.
var rootRowTitle = definedHeapDump.allocatorName;
var stackFrameTrees = this.createStackFrameTrees_(this.heapDumps_);
return new HeapDumpTreeNode(stackFrameTrees,
tr.ui.analysis.HeapDetailsRowDimension.ROOT, rootRowTitle,
this.heavyView);
},
createStackFrameTrees_: function(heapDumps) {
return heapDumps.map(function(heapDump) {
if (heapDump === undefined)
return undefined;
var builder = new MultiDimensionalViewBuilder(
2 /* dimensions (stack frames, object type) */,
2 /* valueCount (size, count) */);
// Build the heap tree.
heapDump.entries.forEach(function(entry) {
var leafStackFrame = entry.leafStackFrame;
var stackTracePath = leafStackFrame === undefined ?
[] : leafStackFrame.getUserFriendlyStackTrace().reverse();
var objectTypeName = entry.objectTypeName;
var objectTypeNamePath = objectTypeName === undefined ?
[] : [objectTypeName];
builder.addPath([stackTracePath, objectTypeNamePath],
[entry.size, entry.count],
MultiDimensionalViewBuilder.ValueKind.TOTAL);
}, this);
return builder.buildView(this.viewMode);
}, this);
}
});
return {};
});
</script>
|
